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| highly radioactive (про радіоактивність) | |||
| highly active | |||
| high-level | |||
| high-activity; highly radioactive | |||
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високоактивний : 9 phrases in 7 subjects |
| Automobiles | 1 |
| Chemistry | 1 |
| Ecology | 1 |
| Nuclear and fusion power | 1 |
| Oil and gas | 1 |
| Scientific | 3 |
| Technology | 1 |